A323969 - cp's OEIS frontend

A323969 Number of 5 X n integer matrices (m_{i,j}) such that m_{1,1}=0, m_{5,n}=2, and all rows, columns, and falling diagonals are (weakly) monotonic without jumps of 2.

n	a(n)
0	1
1	6
2	41
3	266
4	1247
5	4657
6	14795
7	41586
8	106067
9	249814
10	550334
11	1145148
12	2268140
13	4302757
14	7857830
15	13873160
16	23763590
17	39612078
18	64424311
19	102459670
20	159655885
21	244167521
22	367041525
23	543056454
24	791755709
25	1138709134
26	1617041716
27	2269272856
28	3149514786

[1, 6, 41, 266, 1247, 4657, 14795, 41586, 106067, 249814, 550334, 1145148, 2268140, 4302757, 7857830, 13873160, 23763590, 39612078, 64424311, 102459670, 159655885, 244167521, 367041525, 543056454, 791755709, 1138709134, 1617041716, 2269272856, 3149514786]

cp's OEIS Frontend

A323969 Number of 5 X n integer matrices (m_{i,j}) such that m_{1,1}=0, m_{5,n}=2, and all rows, columns, and falling diagonals are (weakly) monotonic without jumps of 2.

Table of values

List of values